micropython: add micropython component

components/language/micropython/examples/pyb.py

@@ -0,0 +1,54 @@
+# pyboard testing functions for CPython
+import time
+
+
+def delay(n):
+    # time.sleep(float(n) / 1000)
+    pass
+
+
+rand_seed = 1
+
+
+def rng():
+    global rand_seed
+    # for these choice of numbers, see P L'Ecuyer, "Tables of linear congruential generators of different sizes and good lattice structure"
+    rand_seed = (rand_seed * 653276) % 8388593
+    return rand_seed
+
+
+# LCD testing object for PC
+# uses double buffering
+class LCD:
+    def __init__(self, port):
+        self.width = 128
+        self.height = 32
+        self.buf1 = [[0 for x in range(self.width)] for y in range(self.height)]
+        self.buf2 = [[0 for x in range(self.width)] for y in range(self.height)]
+
+    def light(self, value):
+        pass
+
+    def fill(self, value):
+        for y in range(self.height):
+            for x in range(self.width):
+                self.buf1[y][x] = self.buf2[y][x] = value
+
+    def show(self):
+        print("")  # blank line to separate frames
+        for y in range(self.height):
+            for x in range(self.width):
+                self.buf1[y][x] = self.buf2[y][x]
+        for y in range(self.height):
+            row = "".join(["*" if self.buf1[y][x] else " " for x in range(self.width)])
+            print(row)
+
+    def get(self, x, y):
+        if 0 <= x < self.width and 0 <= y < self.height:
+            return self.buf1[y][x]
+        else:
+            return 0
+
+    def pixel(self, x, y, value):
+        if 0 <= x < self.width and 0 <= y < self.height:
+            self.buf2[y][x] = value